.head{
    position: relative;
    height: 45px;
    background-color: #4d4343;
}
.shouye_head{
    width: 1000px;
    margin: 0 auto;
    height: 45px;
    line-height: 45px;
}
.shouye_head a{
    color: #ffffff;
    font-size: 22px;
    font-weight: 600;
}
.dowebok {
    margin: 20px auto 0px;
    background:#fff;
    border-radius:20px;
    box-shadow:0 14px 28px rgba(0,0,0,.25),0 10px 10px rgba(0,0,0,.22);
    position:relative;
    overflow:hidden;
    width:1000px;
    max-width:100%;
    height:750px;
}
h1 {
    font-weight:bold;
}
p {
    font-size:14px;
    line-height:10px;
    margin:20px 0 20px;
}
span {
    font-size:12px;
}
a {
    color:#333;
    font-size:14px;
    text-decoration:none;
    margin:15px 0;
}
.form-container form {
    background:#fff;
    display:flex;
    flex-direction:column;
    /* padding:0 50px; */
    height:100%;
    justify-content:center;
    align-items:center;
    /* text-align:center; */
}
.social-container {
    margin:20px 0;
}
.social-container a {
    border:1px solid #ddd;
    border-radius:50%;
    display:inline-flex;
    justify-content:center;
    align-items:center;
    margin:0 5px;
    height:40px;
    width:40px;
}
.social-container a:hover {
    background-color:#eee;
}
.form-container input {
    background:#eee;
    border:none;
    padding:12px 15px;
    margin:8px 0;
    width:300px;
    outline:none;
}
button {
    border-radius:15px;
    border:1px solid #20b2aa;
    background:#20b2aa;
    width: 100px;
    height: 40px;
    line-height: 30px;
    color:#fff;
    font-size:17px;
    font-weight:bold;
    letter-spacing:4px;
    transition:transform 80ms ease-in;
    cursor:pointer;
}
button:active {
    transform:scale(.95);
}
button:focus {
    outline:none;
}
button.ghost {
    background:#20b2aa;
    border-color:#fff;
}
.form-container {
    position:absolute;
    top:0;
    height:100%;
    transition:all .6s ease-in-out;
}
.sign-in {
    left:0;
    width:50%;
    z-index:2;
}
.sign-up {
    left:0;
    width:50%;
    z-index:1;
    opacity:0;
}
.overlay-container {
    position:absolute;
    top:0;
    left:50%;
    width:50%;
    height:100%;
    overflow:hidden;
    transition:transform .6s ease-in-out;
    z-index:100;
}
.overlay {
    background:#20b2aa;
    background:linear-gradient(to right,lightseagreen,lightseagreen) no-repeat 0 0 / cover;
    color:#fff;
    position:relative;
    left:-100%;
    height:100%;
    width:200%;
    transform:translateY(0);
    transition:transform .6s ease-in-out;
}
.overlay-panel {
    position:absolute;
    top:0;
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    height:100%;
    width:50%;
    text-align:center;
    transform:translateY(0);
    transition:transform .6s ease-in-out;
}
.mask-right {
    right:0;
    transform:translateY(0);
}
.mask-left {
    transform:translateY(-50%);
}

/* Move signin to right 向右移动登录 */
.dowebok.right-panel-active .sign-in {
    transform:translateY(100%);
}
/* Move overlay to left 登录蒙版向左移动叠加层 */
.dowebok.right-panel-active .overlay-container {
    transform:translateX(-100%);
}
/* Bring signup over signin 通过登录进行注册 */
.dowebok.right-panel-active .sign-up {
    transform:translateX(100%);
    opacity:1;
    z-index:5;
}
/* Move overlay back to right 将叠加层移回右侧 */
.dowebok.right-panel-active .overlay {
    transform:translateX(50%);
}
/* Bring back the text to center 使文本回到中心 */
.dowebok.right-panel-active .mask-left {
    transform:translateY(0);
}
/* Same effect for right 右侧效果相同 */
.dowebok.right-panel-active .mask-right {
    transform:translateY(50%);
}
/* 提示语的颜色设置 */
.error{
    color: #ff0000;
}